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 WLL description
  1.5-2.5 GHz
  3-4 GHz
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1.5 to 2.5 GHz Proprietary Standards

Wireless Local Loop

  lna mixer if  
  LNA Down Converter IF  
  switch pll baseband  
  T/R Switch PLL Baseband  
  pa driver mod  
  Power Amp Driver Modulator  
  Required Functions & Agilent Technologies products  

Agilent Technologies supplies:
solid state RF components for the radio

WLL 1.5-2.5 GHz Rx-LNA top

Detects and amplifiers incoming signal
[varies with implementation]

AT-415, HBFP-0405, HPFP-0420, AT-320, AT-310, AT-305
ATF-34143, ATF-10xxx, ATF-13xxx, ATF-21186
MGA-85563, MGA-865xx, MGA-87563

WLL 1.5-2.5 GHz Rx-Down Converter top

Converts output of LNA to IF frequency
[varies with implementation]

AT-415, AT-3, or HBFP series transistors as active mixer IAM-81008, IAM-82008, IAM-91563 IC mixers HSMS-820x Schottky diodes HPMX-5001 includes this function

WLL 1.5-2.5 GHz Rx-IF top

Low frequency amplification
[varies with implementation]

AT-415, AT-320, AT-310, AT-305, HBFP-0405, HBFP-0420 bipolar transistors
INA-30311, INA-32063, INA-51063, MSA-0611 and other MSA and INA gain blocks

HPMX-5002 includes this function

WLL 1.5-2.5 GHz T/R Switch top

provides isolation between transmit and receive paths
[varies with implementation]

HSMP-382x, HSMP-3860, HSMP-3890 PIN diodes as switches

WLL 1.5-2.5 GHz PLL top

Provides stable carrier for frequency conversion and/or modulator
[varies with implementation]

HPMX-5001 \ HPMX-5002 includes this function

oscillator : AT-415, AT-320, AT-310, AT-305

buffer : AT-415, AT-320, AT-310, AT-305,
or INA-31063, MGA-85563, MGA-87563, and other MGA, INA, and MSA series gain blocks

prescalers: no Agilent Technologies products

phase comparator: no Agilent Technologies products

WLL 1.5-2.5 GHz Baseband top

provides data inputs to modulator, converts output of IF into information

[varies with implementation] no Agilent Technologies products

WLL 1.5-2.5 GHz Tx-Power Amplifier top

amplifies outgoing signal for broadcast, sets to correct power level
[varies with implementation]

AT-38043, AT-42086, AT-415xx, AT-640xx transistors
ATF-34143, ATF-10xxx, ATF-21186 FETs for power to 100 mW
MGA-83563, MGA-82563 or MGA-81563 (to 100 mW)

HSMS-28xx detector diodes for power control

WLL 1.5-2.5 GHz Tx-Driver top

"glue" part that amplifies modulator output sufficiently to drive power chain
[varies with implementation]

AT-320, AT-420, and AT-415 transistors
ATF-10xxx, ATF-34143, ATF-21186 FETs
MGA-81563, INA-34063, and other MGA and INA gain blocks

WLL 1.5-2.5 GHz Tx-Modulator top

combines data with carrier
[FSK, BPSK, QPSK, or modulated VCO depending on architecture]

FSK: modulated VCO: AT-320, AT-415 transistors
HPMX-5001 \ HPMX-5002 includes this function

BPSK: HPMX-2006 or any HPMX vector modulator listed for QPSK below

HPMX-2007 dual conversion architecture
HPMX-2006 as upconverter (dual conversion)

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this page last updated: 1 October 1999